Automatic water meter test board

Abstract

The invention provides an automatic water meter test board which is used for water meter flow point error value performance tests. The automatic water meter test board comprises a water supply mechanism, a vacuum pumping mechanism, a pressure-withstanding test mechanism, an automatic flow adjusting mechanism, an error value detecting mechanism and a control mechanism. The automatic water meter test board has the advantages that a dynamic measuring method is adopted, data acquisition, recording and operating are carried out after flow is stable, and a start-stop effect is avoided; the automatic water meter test board has an automatic vacuum pumping function, an automatic pressure withstanding testing function and an automatic flow rate adjusting function; the testing precision is high, and small errors are caused; all testing data is uploaded to a server in a concentrated mode and can be processed with the combination of data processing software.

Description

technical field [0001] The invention relates to a test bench, in particular to an automatic water meter test bench, which is used for the performance test of the error value of the flow point of the water meter. Background technique [0002] Existing water meter inspection stations generally adopt the weighing method or measuring cylinder measurement method to detect water meters. Wherein, the weighing method refers to: electronically weigh a certain amount of water, record the value recorded by the water meter when the water flows through the weighed outlet, and then perform error calculation. However, the water consumption of this method is obtained by electronic weighing, which is easily affected by changes in temperature and water quality, and there is a start-stop effect at the same time. [0003] The measuring cylinder method refers to: using a measuring cylinder to measure a certain amount of water, recording the value recorded by the water meter when it flows throug...

AI Technical Summary

Problems solved by technology

[0005] (1) There is a start-stop effect, which affects the test results;

[0006] (2) In the weighing method, the water density is affected by temperature and water quality, which affects the test results;

[0007] (3) In the graduated cylinder method, the water consumption is large and the efficiency is low;

[0008] (4) Taking the water consumption of all products as the standard, due to the small ratio of the water meter, there will be a problem of overcounting or undercounting one pulse during pulse collection, which has a great impact on the overall test results;

[0009] (5) The test data lacks systematic control, and data processing and query are inconvenient

Images